An Iselin man ended up bleeding from his mouth after a fight near a Hoboken club Saturday, but no one seems to know how, police said.

At about 1:40 a.m., police saw the bleeding 23-year-old outside Lana Lounge, 94 River St., reports said. The man, who appeared to be intoxicated, told officers that he was headbutted by a bouncer - his cousin, however, said he was punched, reports said.

A friend of the victim also spoke to police and disagreed with the 23-year-old about the ethnicity of his attacker, reports said.

The head of security at Lana Lounge said the man was assaulted outside the club by two men until security broke up the fight, reports said.

The man was treated at the scene by the Hoboken Volunteer Ambulance Corp.